@misc{cryptoeprint:2012:049,
    author = {Yu Sasaki and Lei Wang},
    title = {2-Dimension Sums: Distinguishers Beyond Three Rounds of RIPEMD-128 and RIPEMD-160},
    howpublished = {Cryptology ePrint Archive, Report 2012/049},
    year = {2012},
    url = {http://eprint.iacr.org/2012/049},
}